Three Digit Subtraction

Front

What is three-digit subtraction?

Back

Three-digit subtraction is the process of subtracting a number that has three digits from another three-digit number.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the first step in three-digit subtraction?

Back

The first step is to line up the numbers by their place values: hundreds, tens, and ones.

Tags

CCSS.2.NBT.B.7

Front

How do you subtract in the ones place?

Back

Subtract the digits in the ones place. If the top digit is smaller, you need to borrow from the tens place.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract in the tens place?

Back

Subtract the digits in the tens place. If you borrowed from the ones place, remember to subtract one from the tens digit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

How do you subtract in the hundreds place?

Back

Subtract the digits in the hundreds place. If you borrowed from the tens place, remember to subtract one from the hundreds digit.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What does it mean to borrow in subtraction?

Back

Borrowing means taking 1 from the next left place value to help subtract when the top digit is smaller than the bottom digit.

Tags

CCSS.2.NBT.B.7

Front

Example of borrowing: 53 - 29. What do you do?

Back

You borrow 1 from the 5 in the tens place, making it 4, and add 10 to the 3 in the ones place, making it 13. Then subtract: 13 - 9 = 4 and 4 - 2 = 2.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the answer to 896 - 573?

Back

The answer is 323.

Tags

CCSS.4.NBT.B.4

Front

What is the answer to 735 - 257?

Back

The answer is 478.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2

Front

What is the answer to 647 - 429?

Back

The answer is 218.

Tags

CCSS.2.NBT.B.7

CCSS.3.NBT.A.2